Patent application number | Description | Published |
20090141741 | METHOD AND APPARATUS FOR CONNECTING SENSOR NETWORK TO HETEROGENEOUS NETWORK - Provided are a method and apparatus for connecting a sensor network to a heterogeneous network, in which an external network connected to the sensor network functions as a virtual personal area network (PAN) so that the same PAN address system is used between the sensor network and the external network by using a concept of a ‘virtual PAN’. According to the method and apparatus for connecting the sensor network to the heterogeneous network, a node of the sensor network can efficiently communicate with a node of the external network including the heterogeneous network by assigning the virtual PAN address to the node of the external network including the heterogeneous network without inserting any additional layer into the node of the sensor network. | 06-04-2009 |
20090147710 | Gateway apparatus for providing multi-channel functionality in sensor network, and method and apparatus for interfacing using serial peripheral interface in the gateway apparatus - Provided are a gateway apparatus for providing multi-channel functionality in a sensor network, and a method and an apparatus for interfacing using serial peripheral interface (SPI) in the gateway apparatus. The SPI interfacing apparatus is connected to a plurality of wireless transmit/receive units, and receives a data frame via an SPI to output the data frame to a wireless transmit/receive unit, based on information regarding selection of the wireless transmit/receive unit, wherein the information is contained in the data frame. Then, the SPI interfacing unit receives data frames from the wireless transmit/receive units to output the data frames in a predetermined order via an SPI. Thus, the wireless transmit/receive units for providing multi-channel functionality can interface a signal processing unit by using an SPI method. | 06-11-2009 |
20110116414 | APPARATUS AND METHOD FOR COMMUNICATION IN WIRELESS SENSOR NETWORK - Provided are a bridge system, a network management server, and communication methods at the bridge system and the network management server for efficient communication in a wireless sensor network (WSN). The communication method at the network management server includes communicating with bridge systems connected with a plurality of radio frequency (RF) regions within a personal area network (PAN) composed of sensor nodes using the same wireless channel, in which radio signals of the sensor nodes within the PAN reach the bridge systems, searching for a new channel to be used and an alternative bridge system which is to perform a channel change into the new channel based on information about the bridge systems upon receipt of an association failure report message from an error bridge system which is reported of an association failure from the RF region from among the bridge systems, sending a channel change request message to the found alternative bridge system, and adjusting channel information for the found alternative bridge system to the new channel and replacing information about sensor nodes connected to the found alternative bridge system with information about sensor nodes that are newly connected with the found alternative bridge system through the new channel. | 05-19-2011 |
Patent application number | Description | Published |
20120163295 | COMMUNICATION APPARATUS AND METHOD - A mobile terminal in a sensor network selects one of the sensors nodes in the sensor network as an upstream agent, and piggybacks a list of neighboring sensor nodes found in the upstream agent selection process on an upstream packet and transmits the upstream packet to a gateway through the upstream agent. The gateway in the sensor network selects one of the neighboring sensor nodes as a downstream agent using state information of the neighboring sensor nodes in the list, and transmits a downstream packet to the mobile terminal through the selected downstream agent. | 06-28-2012 |
20120165963 | APPARATUS FOR CONTROLLING POWER OF SENSOR NODES BASED ON ESTIMATION OF POWER ACQUISITION AND METHOD THEREOF - An apparatus for controlling power of sensor nodes based on estimation of power acquisition, includes: a self power acquisition unit acquiring self power; an internal sensing unit sensing power acquired from the self power acquisition unit and consumed power; a power cut-off unit cutting-off power for each component of the sensor nodes; and a microprocessor receiving information of acquired power and consumed power from the internal sensing unit to analyze a supply and demand of power, estimating the acquired power using annual meteorological statistics data and recent weather forecast data, controlling power for each component of the sensor nodes through the power cut-off unit according to the estimation of the acquired power, and controlling a sensing period and a communication period of the sensor nodes. | 06-28-2012 |
20140081580 | APPARATUS AND METHOD FOR MEASURING AGING ENVIRONMENT - An aging environment measurement apparatus measures aging environment data within an oak barrel and transmits the measured aging environment data within the oak barrel to a server, and the aging environment measurement apparatus is mounted in a bung of the oak barrel. | 03-20-2014 |
20140173116 | APPARATUS AND METHOD FOR SHARING RESOURCE BETWEEN TERMINALS - A resource sharing apparatus which allows a first terminal and a second terminal to share a resource includes a virtual node generating unit which generates a virtual node corresponding to the second terminal in a storing space in the first terminal, and a sharing control unit which transmits sharing data to the second terminal through the virtual node, if information on at least one resource which is permitted to be shared with the second terminal, among the resources of the first terminal, is generated, deleted, or changed. | 06-19-2014 |
20150043411 | GATEWAY SYSTEM FOR SENSOR NETWORK AND DRIVING METHOD THEREOF - A gateway system for a sensor network and a driving method thereof are disclosed. The gateway system includes a sink node board that collects sensor data measured by a sensor node and transmits the sensor data, and a gateway board that transmits the sensor data transmitted from the sink node board to a server. Herein, the sink node board controls whether to apply power to the gateway board or not. | 02-12-2015 |